:root{--primary:#2563eb;--primary-dark:#1d4ed8;--bg:#fff;--bg-alt:#f8fafc;--text:#0f172a;--text-sub:#64748b;--border:#e2e8f0;--radius-card:24px;--radius-btn:14px;--max-w:1200px}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{background:var(--bg);color:var(--text);word-break:keep-all;overflow-wrap:break-word;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:Pretendard,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}.nav{z-index:100;-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--border);background:#ffffffe0;position:fixed;top:0;left:0;right:0}.nav-inner{max-width:var(--max-w);justify-content:space-between;align-items:center;height:64px;margin:0 auto;padding:0 40px;display:flex}.logo{color:var(--primary);letter-spacing:-.5px;font-size:20px;font-weight:800;text-decoration:none}.btn-nav{color:var(--primary);border:1.5px solid var(--primary);border-radius:var(--radius-btn);padding:9px 20px;font-size:14px;font-weight:600;text-decoration:none;transition:background .2s,color .2s}.btn-nav:hover{background:var(--primary);color:#fff}.hero{text-align:center;background:linear-gradient(145deg,#eff6ff 0%,#dbeafe 55%,#ede9fe 100%);justify-content:center;align-items:center;min-height:100vh;padding:128px 40px 80px;display:flex}.hero-inner{width:100%;max-width:720px}.hero h1{letter-spacing:-2.5px;color:var(--text);margin-bottom:28px;font-size:72px;font-weight:800;line-height:1.15}.hero-sub{color:var(--text-sub);margin-bottom:52px;font-size:21px;line-height:1.65}.btn-primary{background:var(--primary);color:#fff;border-radius:var(--radius-btn);cursor:pointer;border:none;padding:18px 44px;font-family:inherit;font-size:18px;font-weight:700;text-decoration:none;transition:background .2s,transform .18s;display:inline-block}.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px)}.feature{background:var(--bg);padding:120px 40px}.feature--alt{background:var(--bg-alt)}.feature-inner{max-width:var(--max-w);align-items:center;gap:96px;margin:0 auto;display:flex}.feature-inner--reverse{flex-direction:row-reverse}.phone-wrap{flex-shrink:0;justify-content:center;display:flex}.phone-frame{background:#fff;border:2px solid #d1d5db;border-radius:40px;width:260px;height:544px;position:relative;overflow:hidden;box-shadow:0 40px 100px #00000021,0 8px 24px #0000000f}.phone-frame img{object-fit:cover;object-position:top center;width:100%;height:100%;display:block}.feature-text{flex:1;max-width:480px}.feature-tag{color:var(--primary);letter-spacing:.2px;background:#eff6ff;border-radius:100px;margin-bottom:22px;padding:6px 14px;font-size:13px;font-weight:700;display:inline-block}.feature-text h2{letter-spacing:-1.8px;color:var(--text);margin-bottom:20px;font-size:52px;font-weight:800;line-height:1.18}.feature-text p{color:var(--text-sub);font-size:19px;line-height:1.7}.cta-section{background:var(--primary);text-align:center;padding:120px 40px}.cta-inner{max-width:560px;margin:0 auto}.cta-section h2{letter-spacing:-1.5px;color:#fff;margin-bottom:16px;font-size:44px;font-weight:800;line-height:1.25}.cta-section .cta-desc{color:#ffffffb8;margin-bottom:44px;font-size:18px;line-height:1.6}.btn-cta{color:var(--primary);border-radius:var(--radius-btn);cursor:pointer;background:#fff;border:none;padding:18px 48px;font-family:inherit;font-size:18px;font-weight:700;transition:transform .18s,box-shadow .18s;box-shadow:0 4px 24px #0000001f}.btn-cta:hover{transform:translateY(-2px);box-shadow:0 8px 32px #0000002e}.toast{color:#fff;opacity:0;pointer-events:none;white-space:nowrap;z-index:200;background:#0f172a;border-radius:100px;padding:14px 28px;font-size:15px;font-weight:500;transition:opacity .3s,transform .3s;position:fixed;bottom:40px;left:50%;transform:translate(-50%)translateY(20px)}.toast.show{opacity:1;transform:translate(-50%)translateY(0)}.footer{background:#0f172a;padding:36px 40px}.footer-inner{max-width:var(--max-w);justify-content:space-between;align-items:center;margin:0 auto;display:flex}.footer .logo{color:#fff;font-size:18px}.footer p{color:#475569;font-size:14px}.animate-in{opacity:0;transition:opacity .75s,transform .75s;transform:translateY(40px)}.animate-in.visible{opacity:1;transform:translateY(0)}@media (width<=768px){.nav-inner{padding:0 20px}.hero{padding:104px 24px 72px}.hero h1{letter-spacing:-1.2px;font-size:42px}.hero-sub{margin-bottom:40px;font-size:17px}.btn-primary{padding:16px 36px;font-size:16px}.feature{padding:80px 24px}.feature-inner,.feature-inner--reverse{text-align:center;flex-direction:column;gap:48px}.feature-text{max-width:100%}.phone-frame{width:240px;height:500px}.feature-text h2{letter-spacing:-1px;font-size:38px}.feature-text p{font-size:17px}.cta-section{padding:80px 24px}.cta-section h2{letter-spacing:-.5px;font-size:32px}.cta-section .cta-desc{font-size:16px}.footer{padding:32px 24px}.footer-inner{text-align:center;flex-direction:column;gap:10px}}